Lucky Line Heavy Duty Bolt Snap, 1 per Card Key Hook, Nickel, 3-1/4" (44701) 3-1/4" heavy duty bolt snap with 1-1/2" split ring. Made of Nickel plated zinc. 1 per card. Bottom loop rotates so keys lie flat. Spring-loaded gate opens with light pressure Attaches easily to belt loop, purse strap, backpack and more.